Clearly labeled visual displays can be as simple as lighted jewels that indicate that the call for help has been activated and that this message has been received....
Search Results "Vision Light"
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Emergency Communications [4.10.14]
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1009.8.1.1 Visible communication method
[DSA-AC and HCD 1-AC] A button complying with Section 1138A.4 or Sections 11B-205 and 11B-309 in the area of refuge shall activate both a light in the area of refuge indicating that rescue...
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1009.8.1.1 Visible communication method
[DSA-AC and HCD 1-AC] A button complying with Section 1138A.4 or Sections 11B-205 and 11B-309 _|Operable Parts|_ in the area of refuge shall activate both a light in the area of refuge indicating...
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11B-705.1.1.3.2
Contrast in percent shall be determined by: Contrast percent = [(B1-B2)/B1] x 100 percent where B1 = light reflectance value (LRV) of the lighter area and B2 = light reflectance...
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11B-705.1.1.3.2
Contrast in percent shall be determined by: Contrast percent = [(B1-B2)/B1] x 100 percent where B1 = light reflectance value (LRV) of the lighter area and B2 = light reflectance...
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11B-308.1.1 Electrical switches
Controls and switches intended to be used by the occupant of a room or area to control lighting and receptacle outlets, appliances or cooling, heating and ventilating equipment, shall comply...
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11B-308.1.1 Electrical switches
Controls and switches intended to be used by the occupant of a room or area to control lighting and receptacle outlets, appliances or cooling, heating and ventilating equipment, shall comply...
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1007.8.1.1 Visible communication method
[DSA-AC and HCD 1-AC] A button complying with Section 1138A.4 or Sections 11B-205 and 11B-309 _|Operable Parts|_ in the area of refuge shall activate both a light in the area of refuge...
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References
“Research on Effective Use of Tactile Exhibits with Touch Activated Audio Description for the Blind and Low Vision Audience.”...
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Tread Surface: ADA Standard Section 504.4
Section 504.4 covers the current ADA Standards for the tread surfaces on stairways.
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Providing Auxiliary Aids and Services
(for people who are blind or have low vision) qualified readers, notetakers, texts on CD, audio recordings, Brailled materials, and large print materials....
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Contrast
Recommendation: Although ADAAG does not specify values for light-on-dark or dark-on-light contrast, a minimum 70% light reflectance contrast is recommended....
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705.1.3 Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light....
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4.30.3* COLOR CONTRAST
Characters and symbols shall contrast with their background - either light characters on a dark background or dark characters on a light background....
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705.1.3 Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light....
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D. Notification – Alerting the Public to an Emergency
Those who are blind or who have low vision may not be aware of visual cues, such as flashing lights....
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11B-703.7.2.6.3 Unisex toilet and bathing facilities
The triangle symbol shall contrast with the circle symbol, either light on a dark background or dark on a light background....
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§ 38.119(b)
(b) The doorways of cars not operating at lighted station platforms shall have outside lights which, when the door is open, provide at least 1 foot-candle of illumination on the station...
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§ 38.81(c)
(c) The doorways of vehicles not operating at lighted station platforms shall have outside lights which provide at least 1 foot-candle of illumination on the station platform or street surface...
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Finish and Contrast [4.30.5]
Consideration should also be given to light sources and the ambient lighting to prevent glare on sign surfaces....
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A4.1.3(19)(a)
For example, a marker which contrasts (light on dark or dark on light) and which also reflects light could be placed on the side of such seating so as to be visible in a lighted auditorium...
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Official Definitions
Okay, the official definition of low vision usually goes hand-in-hand with blindness, and low vision and blindness are often in the same sentence....
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101.3 Intent
to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, sanitation, adequate light...
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11B-411.4.11.2 Contrast
Visual display shall provide contrast with light characters on a dark background or dark characters on a light background. The background shall be solid and static....